[mythtv-users] [OT] How may bytes available on a single layer DVD-R?

Cory Papenfuss papenfuss at juneau.me.vt.edu
Sun Mar 13 17:02:32 UTC 2005


> How may bytes or MB is the capacity of a DVD-R disc? I am currently using a
> guessitimate of 4250MB as the limit for my shrinking routine but it would be
> nice to have the actaul value for fine tuning.
>
 	It's commonly referred to as 4.7 GB.  Of course, that's 4.7 GB in 
marketspeak, which means its 4,700,000,000 bytes.  In *real* GB, divide by 
2^30 = (1024*1024*1024) = 1073741824.  For MB, divide by 2^20.

Thus, it's
4.7e9/2^30 = 4.377 GB, or
4.7e9/2^20 = 4482 MB

-Cory


*************************************************************************
* Cory Papenfuss                                                        *
* Electrical Engineering candidate Ph.D. graduate student               *
* Virginia Polytechnic Institute and State University                   *
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